n. A small beanbag or sandbag used as a ball in a number of sports and games. It is typically controlled by the feet, but in some sports every part of the body except the hands and arms may be used.
n. A generic name for the sports which use the footbag.
Word Usage
"You know it as hackey-sack - what all the stoners did between classes, or while skipping class in high school - but it's called "footbag," and there's a whole competition dedicated to it."